const footTemplate = `<footer class="main-footer">
                <div class="footer-left">
                    Copyright &copy; 2020 . Design By 书友网
                </div>
                <div class="footer-right"></div>
            </footer>`
Vue.component('my-footer', {
    template: footTemplate,
    data() {
        return {

        }
    },
    methods: {

    }
});
